Edgebanding

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What is the best type of edgebanding for an auto edgebander? Is fleece backing better? It seems I am having trouble with a maple for paint but not with an alder. I have heard a German company makes the best??

It seems the edgebanding is just coming loose in areas. This is with maple. I have used alder with no apparent problems. It may be the humidity. I am in the southwest. I need to have the contact rolls trued, though. May try covering one with rubber. There are three on my Basic 2.

I can think of a couple reasons why your Maple edgebands might be coming loose. One thing I would check is the thickness consistency of the edgeband, Maple is a very difficult species to cut and prone to "thick & thin" spots. It might be worth your while to get a micrometer and measure it for consistency.

I would also check the pressure wheels and the glue applicator wheel to make sure everything is aligned and working properly.

Is your Maple edgebanding showing any signs of warp, twist or tension? That usually causes the edgeband to ride up or down while being applied, but I have seen sever buckles in Maple that have caused open spaces along the edge.

Finally, I would acknowledge that Maple is a "pain" and use another species whenever and wherever possible.

The company we buy from is American Veneer Edgeband Company, which I know, doesn't sound like a German company, but their edgebanding is manufactured in Germany and they import it. They have been a very good supplier for us.

There are other German edgeband companies out there, but I only "plug" my suppliers, not their competitors.

Is the banding not sticking to the glue, or is the wood separating from the fleece? I once had the later problem near the end of a roll of Maple. It's not an obvious difference and it wasn't until I discovered that I could peel the fleece off the wood that I knew what was going on.

It seems that the wood with a paper backing intact is peeling away. It starts on one edge of the long side. The substrate though has an even coat of hotmelt glue, non filled type. This leaves me with guessing: 1) The pressure rollers are not making good contact and need to be turned to true them.
2) Still not enough glue line thickness, which I will add more with adjustment.
3) Humidity. The wood expanding and breaking what glue line is there.
4) Or there is a problem with the backing even though it is still intact on the wood veneer.
I havent had this problem with alder, oak or the pvc type of edgebanding.

Get some clear banding from your supplier (usually given free.) You will be able to see your spread. From there you can work on what causes the problem. More adhesive is not usually a good idea, uniform is.

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